code: def _verify_file(filename):
      assert len(filename) >= 2, "Filename should be <x>.<type>"
      assert filename.split(".")[-1] in MODEL_MAP, (
          "unsupport file type for %s" % filename
      )
  
file_path: auptimizer/src/aup/dlconvert/__main__.py
imports: import argparse
  import os
  import sys
  import json
  import logging
  import coloredlogs
  import subprocess
  from ..utils import LOG_LEVEL
label_desc: Use image node_id 1 for calling a global function with example usage: _verify_file(filename) without return types